Does erythromycin ointment work for bedsores? The formation of decubitus ulcers is mainly due to tissue ischemia and necrosis caused by long-term bed-rest pressure, which leads to ischemia of the compressed tissues. Its necrosis is not caused by infection, so the treatment of decubitus ulcers is not only an ointment, but also includes normal care, dressings and the correct method. Treatment with erythromycin ointment is generally not recommended because the treatment is also ineffective. Bed sores are a common complication in people who are bedridden for long periods of time and can be avoided if properly cared for. Long-term bedridden patients should turn regularly to avoid constant pressure on the same area, massage the area under pressure frequently, avoid re-pressure once a bedsore occurs, promote local blood circulation, strengthen the treatment of trauma, and prevent infection. In the early stage of decubitus ulcers, localized tincture of iodine can be applied, and attention should be paid to preventing dry skin by applying glycerin or paraffin oil in appropriate amounts. Small ulcers can be treated with decubitus ulcer patches, while large ulcers must be treated with surgical debridement.